Stagg, M. S., & Engler, A. J. (1980). Measurement of blast-induced ground vibrations and seismograph calibration. U.S. Dept. of the Interior, Bureau of Mines.
Chicago-referens (17:e uppl.)Stagg, Mark S., och Alvin J. Engler. Measurement of Blast-induced Ground Vibrations and Seismograph Calibration. [Washington]: U.S. Dept. of the Interior, Bureau of Mines, 1980.
MLA-referens (9:e uppl.)Stagg, Mark S., och Alvin J. Engler. Measurement of Blast-induced Ground Vibrations and Seismograph Calibration. U.S. Dept. of the Interior, Bureau of Mines, 1980.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.